The Brown-headed Cowbird is well known–and widely disliked–for its practice of laying eggs in the nests of other species. Males are black birds with dull brown heads. Adult males are shiny black, while first-year males are duller black. Females are much smaller and solid brown with a whitish throat and light streaking on their undersides. Juveniles look similar to females, but are more heavily streaked with lighter bellies and light edging on their wing feathers. Cowbirds have more finch-like conical beaks than other blackbirds.